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Commit 51cff6ef authored by Francois Cartegnie's avatar Francois Cartegnie
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demux: ogg: add skeleton index seeking

parent d6a7b808
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Showing with 476 additions and 74 deletions
modules/demux/ogg.c
View file @ 51cff6ef
......@@ -136,6 +136,13 @@ static void Ogg_ReadKateHeader( logical_stream_t *, ogg_packet * );
static void Ogg_ReadFlacHeader( demux_t *, logical_stream_t *, ogg_packet * );
static void Ogg_ReadAnnodexHeader( demux_t *, logical_stream_t *, ogg_packet * );
static bool Ogg_ReadDiracHeader( logical_stream_t *, ogg_packet * );
static void Ogg_ReadSkeletonHeader( demux_t *, logical_stream_t *, ogg_packet * );
/* Skeleton */
static void Ogg_ReadSkeletonBones( demux_t *, ogg_packet * );
static void Ogg_ReadSkeletonIndex( demux_t *, ogg_packet * );
static void Ogg_FreeSkeleton( ogg_skeleton_t * );
static void Ogg_ApplySkeleton( logical_stream_t * );
static void fill_channels_info(audio_format_t *audio)
{
......@@ -286,11 +293,32 @@ static int Demux( demux_t * p_demux )
if( Ogg_ReadPage( p_demux, &p_sys->current_page ) != VLC_SUCCESS )
return 0; /* EOF */
/* Test for End of Stream */
if( ogg_page_eos( &p_sys->current_page ) )
{
/* If we delayed restarting encoders/SET_ES_FMT for more
* skeleton provided configuration */
if ( p_sys->p_skelstream && p_sys->p_skelstream->i_serial_no == ogg_page_serialno(&p_sys->current_page) )
{
msg_Dbg( p_demux, "End of Skeleton" );
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
{
logical_stream_t *p_stream = p_sys->pp_stream[i_stream];
if ( p_stream->b_have_updated_format )
{
p_stream->b_have_updated_format = false;
if ( p_stream->p_skel ) Ogg_ApplySkeleton( p_stream );
msg_Dbg( p_demux, "Resetting format for stream %d", i_stream );
es_out_Control( p_demux->out, ES_OUT_SET_ES_FMT,
p_stream->p_es, &p_stream->fmt );
}
}
}
/* FIXME that eos handling is innapropriate with seeking and concatenated streams */
if( ogg_page_eos( &p_sys->current_page )
&& ogg_page_granulepos( &p_sys->current_page ) != 0 ) /* skel workaround */
if ( ogg_page_granulepos( &p_sys->current_page ) != 0 ) /* skel workaround */
p_sys->i_eos++;
}
}
b_skipping = false;
for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
......@@ -564,6 +592,22 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
return VLC_SUCCESS;
case DEMUX_SET_TIME:
i64 = (int64_t)va_arg( args, int64_t );
logical_stream_t *p_stream = Ogg_GetSelectedStream( p_demux );
if ( !p_stream )
{
msg_Err( p_demux, "No selected seekable stream found" );
return VLC_EGENERIC;
}
stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b );
if ( Oggseek_BlindSeektoAbsoluteTime( p_demux, p_stream, i64, b ) )
{
Ogg_ResetStreamHelper( p_sys );
es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME,
VLC_TS_0 + i64 );
return VLC_SUCCESS;
}
else
return VLC_EGENERIC;
case DEMUX_GET_ATTACHMENTS:
......@@ -606,7 +650,7 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
return VLC_EGENERIC;
}
logical_stream_t *p_stream = Ogg_GetSelectedStream( p_demux );
p_stream = Ogg_GetSelectedStream( p_demux );
if ( !p_stream )
{
msg_Err( p_demux, "No selected seekable stream found" );
......@@ -674,42 +718,31 @@ static int Control( demux_t *p_demux, int i_query, va_list args )
case DEMUX_SET_SEEKPOINT:
{
const int i_seekpoint = (int)va_arg( args, int );
if( i_seekpoint > p_sys->i_seekpoints )
return VLC_EGENERIC;
if( p_sys->i_bos > 0 )
{
if( i_seekpoint > p_sys->i_seekpoints || p_sys->i_bos > 0 )
return VLC_EGENERIC;
}
Ogg_ResetStreamHelper( p_sys );
i64 = p_sys->pp_seekpoints[i_seekpoint]->i_time_offset;
if ( p_sys->i_bitrate == 0 || p_sys->b_partial_bitrate )
{
/* we won't be able to find block by time
* we'll need to bisect search from here
* or use skeleton index if any (FIXME)
*/
logical_stream_t *p_stream = Ogg_GetSelectedStream( p_demux );
p_stream = Ogg_GetSelectedStream( p_demux );
if ( !p_stream )
{
msg_Err( p_demux, "No selected seekable stream found" );
return VLC_EGENERIC;
}
Oggseek_SeektoAbsolutetime( p_demux, p_stream, p_sys->pp_seekpoints[i_seekpoint]->i_time_offset );
return VLC_SUCCESS;
}
else
stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &b );
if ( Oggseek_BlindSeektoAbsoluteTime( p_demux, p_stream, i64, b ) )
{
int64_t i_block = p_sys->pp_seekpoints[i_seekpoint]->i_time_offset * p_sys->i_bitrate / INT64_C(8000000);
if( stream_Seek( p_demux->s, i_block ) )
return VLC_EGENERIC;
}
Ogg_ResetStreamHelper( p_sys );
es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME,
VLC_TS_0 + i64 );
p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
p_demux->info.i_seekpoint = i_seekpoint;
return VLC_SUCCESS;
}
else
return VLC_EGENERIC;
}
default:
return demux_vaControlHelper( p_demux->s, 0, -1, p_sys->i_bitrate,
......@@ -851,6 +884,18 @@ static void Ogg_DecodePacket( demux_t *p_demux,
/* it's an AnxData packet -- skip it (do nothing) */
return;
}
else if( p_oggpacket->bytes >= 8 &&
! memcmp ( p_oggpacket->packet, "fisbone", 8 ) )
{
Ogg_ReadSkeletonBones( p_demux, p_oggpacket );
return;
}
else if( p_oggpacket->bytes >= 6 &&
! memcmp ( p_oggpacket->packet, "index", 6 ) )
{
Ogg_ReadSkeletonIndex( p_demux, p_oggpacket );
return;
}
if( p_stream->fmt.i_codec == VLC_CODEC_SUBT && p_oggpacket->bytes > 0 &&
p_oggpacket->packet[0] & PACKET_TYPE_BITS ) return;
......@@ -955,8 +1000,23 @@ static void Ogg_DecodePacket( demux_t *p_demux,
p_stream->fmt.i_extra = 0;
if( Ogg_LogicalStreamResetEsFormat( p_demux, p_stream ) )
{
if ( p_ogg->p_skelstream )
{
/* We delay until eos is reached on skeleton.
* There should only be headers, as no data page is
* allowed before skeleton's eos.
* Skeleton data is appended to fmt on skeleton eos.
*/
p_stream->b_have_updated_format = true;
}
else
{
/* Otherwise we set config from first headers */
es_out_Control( p_demux->out, ES_OUT_SET_ES_FMT,
p_stream->p_es, &p_stream->fmt );
}
}
if( p_stream->i_headers > 0 )
Ogg_ExtractMeta( p_demux, & p_stream->fmt,
......@@ -1657,14 +1717,14 @@ static int Ogg_FindLogicalStreams( demux_t *p_demux )
p_ogg->i_streams--;
}
}
else if( oggpacket.bytes >= 7 &&
! memcmp( oggpacket.packet, "fishead", 7 ) )
else if( oggpacket.bytes >= 8 &&
! memcmp( oggpacket.packet, "fishead\0", 8 ) )
{
/* Skeleton */
msg_Dbg( p_demux, "stream %d is a skeleton",
p_ogg->i_streams-1 );
/* FIXME: https://trac.videolan.org/vlc/ticket/1412 */
Ogg_ReadSkeletonHeader( p_demux, p_stream, &oggpacket );
}
else
{
......@@ -1811,6 +1871,8 @@ static void Ogg_EndOfStream( demux_t *p_demux )
p_ogg->i_bitrate = 0;
p_ogg->i_streams = 0;
p_ogg->pp_stream = NULL;
p_ogg->skeleton.major = 0;
p_ogg->skeleton.minor = 0;
/* */
if( p_ogg->p_meta )
......@@ -1837,6 +1899,11 @@ static void Ogg_LogicalStreamDelete( demux_t *p_demux, logical_stream_t *p_strea
oggseek_index_entries_free( p_stream->idx );
}
Ogg_FreeSkeleton( p_stream->p_skel );
p_stream->p_skel = NULL;
if ( p_demux->p_sys->p_skelstream == p_stream )
p_demux->p_sys->p_skelstream = NULL;
free( p_stream );
}
/**
......@@ -2321,6 +2388,76 @@ static void Ogg_ReadKateHeader( logical_stream_t *p_stream,
}
}
static void Ogg_ApplyContentType( logical_stream_t *p_stream, const char* psz_value,
bool *b_force_backup, bool *b_packet_out )
{
if( !strncmp(psz_value, "audio/x-wav", 11) )
{
/* n.b. WAVs are unsupported right now */
p_stream->fmt.i_cat = UNKNOWN_ES;
free( p_stream->fmt.psz_description );
p_stream->fmt.psz_description = strdup("WAV Audio (Unsupported)");
}
else if( !strncmp(psz_value, "audio/x-vorbis", 14) ||
!strncmp(psz_value, "audio/vorbis", 12) )
{
p_stream->fmt.i_cat = AUDIO_ES;
p_stream->fmt.i_codec = VLC_CODEC_VORBIS;
*b_force_backup = true;
}
else if( !strncmp(psz_value, "audio/x-speex", 13) ||
!strncmp(psz_value, "audio/speex", 11) )
{
p_stream->fmt.i_cat = AUDIO_ES;
p_stream->fmt.i_codec = VLC_CODEC_SPEEX;
*b_force_backup = true;
}
else if( !strncmp(psz_value, "audio/flac", 10) )
{
p_stream->fmt.i_cat = AUDIO_ES;
p_stream->fmt.i_codec = VLC_CODEC_FLAC;
*b_force_backup = true;
}
else if( !strncmp(psz_value, "video/x-theora", 14) ||
!strncmp(psz_value, "video/theora", 12) )
{
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_CODEC_THEORA;
*b_force_backup = true;
}
else if( !strncmp(psz_value, "video/x-xvid", 12) )
{
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_FOURCC( 'x','v','i','d' );
*b_force_backup = true;
}
else if( !strncmp(psz_value, "video/mpeg", 10) )
{
/* n.b. MPEG streams are unsupported right now */
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_CODEC_MPGV;
}
else if( !strncmp(psz_value, "text/x-cmml", 11) ||
!strncmp(psz_value, "text/cmml", 9) )
{
p_stream->fmt.i_cat = SPU_ES;
p_stream->fmt.i_codec = VLC_CODEC_CMML;
*b_packet_out = true;
}
else if( !strncmp(psz_value, "application/kate", 16) )
{
/* ??? */
p_stream->fmt.i_cat = UNKNOWN_ES;
free( p_stream->fmt.psz_description );
p_stream->fmt.psz_description = strdup("OGG Kate Overlay (Unsupported)");
}
}
static void Ogg_ReadAnnodexHeader( demux_t *p_demux,
logical_stream_t *p_stream,
ogg_packet *p_oggpacket )
......@@ -2385,52 +2522,226 @@ static void Ogg_ReadAnnodexHeader( demux_t *p_demux,
/* What type of file do we have?
* strcmp is safe to use here because we've extracted
* content_type_string from the stream manually */
if( !strncmp(content_type_string, "audio/x-wav", 11) )
{
/* n.b. WAVs are unsupported right now */
p_stream->fmt.i_cat = UNKNOWN_ES;
bool b_dopacketout = false;
Ogg_ApplyContentType( p_stream, content_type_string,
&p_stream->b_force_backup, &b_dopacketout );
if ( b_dopacketout ) ogg_stream_packetout( &p_stream->os, p_oggpacket );
}
else if( !strncmp(content_type_string, "audio/x-vorbis", 14) )
}
static void Ogg_ReadSkeletonHeader( demux_t *p_demux, logical_stream_t *p_stream,
ogg_packet *p_oggpacket )
{
p_demux->p_sys->p_skelstream = p_stream;
/* There can be only 1 skeleton for streams */
p_demux->p_sys->skeleton.major = GetWLE( &p_oggpacket->packet[8] );
p_demux->p_sys->skeleton.minor = GetWLE( &p_oggpacket->packet[10] );
if ( asprintf( & p_stream->fmt.psz_description,
"OGG Skeleton version %" PRIu16 ".%" PRIu16,
p_demux->p_sys->skeleton.major,
p_demux->p_sys->skeleton.minor ) < 0 )
p_stream->fmt.psz_description = NULL;
}
static void Ogg_ReadSkeletonBones( demux_t *p_demux, ogg_packet *p_oggpacket )
{
if ( p_demux->p_sys->skeleton.major < 3 || p_oggpacket->bytes < 52 ) return;
/* Find the matching stream for this skeleton data */
ogg_int32_t i_serialno = GetDWLE( &p_oggpacket->packet[12] );
logical_stream_t *p_target_stream = NULL;
for ( int i=0; i< p_demux->p_sys->i_streams; i++ )
{
p_stream->fmt.i_cat = AUDIO_ES;
p_stream->fmt.i_codec = VLC_CODEC_VORBIS;
if ( p_demux->p_sys->pp_stream[i]->i_serial_no == i_serialno )
{
p_target_stream = p_demux->p_sys->pp_stream[i];
break;
}
}
if ( !p_target_stream ) return;
p_stream->b_force_backup = true;
ogg_skeleton_t *p_skel = p_target_stream->p_skel;
if ( !p_skel )
{
p_skel = malloc( sizeof( ogg_skeleton_t ) );
if ( !p_skel ) return;
TAB_INIT( p_skel->i_messages, p_skel->ppsz_messages );
p_skel->p_index = NULL;
p_target_stream->p_skel = p_skel;
}
else if( !strncmp(content_type_string, "audio/x-speex", 13) )
const unsigned char *p_messages = p_oggpacket->packet + 8 + GetDWLE( &p_oggpacket->packet[8] );
const unsigned char *p_boundary = p_oggpacket->packet + p_oggpacket->bytes;
const unsigned char *p = p_messages;
while ( p <= p_boundary - 1 && p > p_oggpacket->packet )
{
p_stream->fmt.i_cat = AUDIO_ES;
p_stream->fmt.i_codec = VLC_CODEC_SPEEX;
if ( *p == 0x0D && *(p+1) == 0x0A )
{
char *psz_message = strndup( (const char *) p_messages,
p - p_messages );
if ( psz_message )
{
msg_Dbg( p_demux, "stream %" PRId32 " [%s]", i_serialno, psz_message );
TAB_APPEND( p_skel->i_messages, p_skel->ppsz_messages, psz_message );
}
if ( p < p_boundary - 1 ) p_messages = p + 2;
}
p++;
}
p_stream->b_force_backup = true;
}
/* Unpacks the 7bit variable encoding used in skeleton indexes */
unsigned const char * Read7BitsVariableLE( unsigned const char *p_begin,
unsigned const char const *p_end,
uint64_t *pi_value )
{
int i_shift = 0;
int64_t i_read = 0;
*pi_value = 0;
while ( p_begin < p_end )
{
i_read = *p_begin & 0x7F; /* High bit is start of integer */
*pi_value = *pi_value | ( i_read << i_shift );
i_shift += 7;
if ( (*p_begin++ & 0x80) == 0x80 ) break; /* see prev */
}
else if( !strncmp(content_type_string, "video/x-theora", 14) )
*pi_value = GetQWLE( pi_value );
return p_begin;
}
static void Ogg_ReadSkeletonIndex( demux_t *p_demux, ogg_packet *p_oggpacket )
{
if ( p_demux->p_sys->skeleton.major < 4
|| p_oggpacket->bytes < 44 /* Need at least 1 index value (42+1+1) */
) return;
/* Find the matching stream for this skeleton data */
int32_t i_serialno = GetDWLE( &p_oggpacket->packet[6] );
logical_stream_t *p_stream = NULL;
for ( int i=0; i< p_demux->p_sys->i_streams; i++ )
{
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_CODEC_THEORA;
if ( p_demux->p_sys->pp_stream[i]->i_serial_no == i_serialno )
{
p_stream = p_demux->p_sys->pp_stream[i];
break;
}
}
if ( !p_stream ) return;
uint64_t i_keypoints = GetQWLE( &p_oggpacket->packet[10] );
msg_Dbg( p_demux, "%" PRIi64 " index data for %" PRIi32, i_keypoints, i_serialno );
if ( !i_keypoints ) return;
p_stream->b_force_backup = true;
p_stream->p_skel->i_indexstampden = GetQWLE( &p_oggpacket->packet[18] );
p_stream->p_skel->i_indexfirstnum = GetQWLE( &p_oggpacket->packet[24] );
p_stream->p_skel->i_indexlastnum = GetQWLE( &p_oggpacket->packet[32] );
unsigned const char *p_fwdbyte = &p_oggpacket->packet[42];
unsigned const char const *p_boundary = p_oggpacket->packet + p_oggpacket->bytes;
uint64_t i_offset = 0;
uint64_t i_time = 0;
uint64_t i_keypoints_found = 0;
while( p_fwdbyte < p_boundary && i_keypoints_found < i_keypoints )
{
uint64_t i_val;
p_fwdbyte = Read7BitsVariableLE( p_fwdbyte, p_boundary, &i_val );
i_offset += i_val;
p_fwdbyte = Read7BitsVariableLE( p_fwdbyte, p_boundary, &i_val );
i_time += i_val * p_stream->p_skel->i_indexstampden;
i_keypoints_found++;
}
else if( !strncmp(content_type_string, "video/x-xvid", 12) )
if ( i_keypoints_found != i_keypoints )
{
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_FOURCC( 'x','v','i','d' );
msg_Warn( p_demux, "Invalid Index: missing entries" );
return;
}
p_stream->b_force_backup = true;
p_stream->p_skel->p_index = malloc( p_oggpacket->bytes - 42 );
if ( !p_stream->p_skel->p_index ) return;
memcpy( p_stream->p_skel->p_index, &p_oggpacket->packet[42],
p_oggpacket->bytes - 42 );
p_stream->p_skel->i_index = i_keypoints_found;
p_stream->p_skel->i_index_size = p_oggpacket->bytes - 42;
}
static void Ogg_FreeSkeleton( ogg_skeleton_t *p_skel )
{
if ( !p_skel ) return;
for ( int i=0; i< p_skel->i_messages; i++ )
free( p_skel->ppsz_messages[i] );
TAB_CLEAN( p_skel->i_messages, p_skel->ppsz_messages );
free( p_skel->p_index );
free( p_skel );
}
static void Ogg_ApplySkeleton( logical_stream_t *p_stream )
{
if ( !p_stream->p_skel ) return;
for ( int i=0; i< p_stream->p_skel->i_messages; i++ )
{
const char *psz_message = p_stream->p_skel->ppsz_messages[i];
if ( ! strncmp( "Name: ", psz_message, 6 ) )
{
free( p_stream->fmt.psz_description );
p_stream->fmt.psz_description = strdup( psz_message + 6 );
}
else if( !strncmp(content_type_string, "video/mpeg", 10) )
else if ( ! strncmp("Content-Type: ", psz_message, 14 ) )
{
/* n.b. MPEG streams are unsupported right now */
p_stream->fmt.i_cat = VIDEO_ES;
p_stream->fmt.i_codec = VLC_CODEC_MPGV;
bool b_foo;
Ogg_ApplyContentType( p_stream, psz_message + 14, &b_foo, &b_foo );
}
}
else if( !strncmp(content_type_string, "text/x-cmml", 11) )
}
/* Return true if there's a skeleton exact match */
bool Ogg_GetBoundsUsingSkeletonIndex( logical_stream_t *p_stream, int64_t i_time,
int64_t *pi_lower, int64_t *pi_upper )
{
if ( !p_stream || !p_stream->p_skel || !p_stream->p_skel->p_index )
return false;
/* Validate range */
if ( i_time < p_stream->p_skel->i_indexfirstnum
* p_stream->p_skel->i_indexstampden ||
i_time > p_stream->p_skel->i_indexlastnum
* p_stream->p_skel->i_indexstampden ) return false;
/* Then Lookup its index */
unsigned const char *p_fwdbyte = p_stream->p_skel->p_index;
struct
{
ogg_stream_packetout( &p_stream->os, p_oggpacket );
p_stream->fmt.i_cat = SPU_ES;
p_stream->fmt.i_codec = VLC_CODEC_CMML;
int64_t i_pos;
int64_t i_time;
} current = { 0, 0 }, prev = { -1, -1 };
uint64_t i_keypoints_found = 0;
while( p_fwdbyte < p_fwdbyte + p_stream->p_skel->i_index_size
&& i_keypoints_found < p_stream->p_skel->i_index )
{
uint64_t i_val;
p_fwdbyte = Read7BitsVariableLE( p_fwdbyte,
p_fwdbyte + p_stream->p_skel->i_index_size, &i_val );
current.i_pos += i_val;
p_fwdbyte = Read7BitsVariableLE( p_fwdbyte,
p_fwdbyte + p_stream->p_skel->i_index_size, &i_val );
current.i_time += i_val * p_stream->p_skel->i_indexstampden;
if ( current.i_pos < 0 || current.i_time < 0 ) break;
i_keypoints_found++;
if ( i_time <= current.i_time )
{
*pi_lower = prev.i_pos;
*pi_upper = current.i_pos;
return ( i_time == current.i_time );
}
prev = current;
}
return false;
}
static uint32_t dirac_uint( bs_t *p_bs )
......
modules/demux/ogg.h
View file @ 51cff6ef
......@@ -41,6 +41,7 @@
#define PACKET_IS_SYNCPOINT 0x08
typedef struct oggseek_index_entry demux_index_entry_t;
typedef struct ogg_skeleton_t ogg_skeleton_t;
typedef struct logical_stream_s
{
......@@ -57,6 +58,7 @@ typedef struct logical_stream_s
* data for the decoder. We back them up here in case we need to re-feed
* them to the decoder. */
bool b_force_backup;
bool b_have_updated_format;
int i_packets_backup;
int32_t i_extra_headers_packets;
void *p_headers;
......@@ -85,6 +87,9 @@ typedef struct logical_stream_s
/* keyframe index for seeking, created as we discover keyframes */
demux_index_entry_t *idx;
/* Skeleton data */
ogg_skeleton_t *p_skel;
/* skip some frames after a seek */
int i_skip_frames;
......@@ -99,12 +104,25 @@ typedef struct logical_stream_s
} logical_stream_t;
struct ogg_skeleton_t
{
int i_messages;
char **ppsz_messages;
unsigned char *p_index;
uint64_t i_index;
uint64_t i_index_size;
int64_t i_indexstampden;/* time denominator */
int64_t i_indexfirstnum;/* first sample time numerator */
int64_t i_indexlastnum;
};
struct demux_sys_t
{
ogg_sync_state oy; /* sync and verify incoming physical bitstream */
int i_streams; /* number of logical bitstreams */
logical_stream_t **pp_stream; /* pointer to an array of logical streams */
logical_stream_t *p_skelstream; /* pointer to skeleton stream if any */
logical_stream_t *p_old_stream; /* pointer to a old logical stream to avoid recreating it */
......@@ -140,6 +158,13 @@ struct demux_sys_t
int i_seekpoints;
seekpoint_t **pp_seekpoints;
/* skeleton */
struct
{
uint16_t major;
uint16_t minor;
} skeleton;
/* */
int i_attachments;
input_attachment_t **attachments;
......@@ -149,3 +174,10 @@ struct demux_sys_t
DemuxDebug( bool b_seeked; )
};
unsigned const char * Read7BitsVariableLE( unsigned const char *,
unsigned const char const *,
uint64_t * );
bool Ogg_GetBoundsUsingSkeletonIndex( logical_stream_t *p_stream, int64_t i_time,
int64_t *pi_lower, int64_t *pi_upper );
modules/demux/oggseek.c
View file @ 51cff6ef
......@@ -246,7 +246,6 @@ static bool OggSeekIndexFind ( logical_stream_t *p_stream, int64_t i_timestamp,
int64_t *pi_pos_lower, int64_t *pi_pos_upper )
{
demux_index_entry_t *idx = p_stream->idx;
*pi_pos_lower = *pi_pos_upper = -1;
while ( idx != NULL )
{
......@@ -553,7 +552,6 @@ clean:
ogg_stream_clear( &os );
}
/* convert a theora frame to a granulepos */
static inline int64_t frame_to_gpos( logical_stream_t *p_stream, int64_t i_kframe,
......@@ -1273,6 +1271,54 @@ static int64_t OggBisectSearchByTime( demux_t *p_demux, logical_stream_t *p_stre
* public functions
*************************************************************************/
int Oggseek_BlindSeektoAbsoluteTime( demux_t *p_demux, logical_stream_t *p_stream,
int64_t i_time, bool b_fastseek )
{
demux_sys_t *p_sys = p_demux->p_sys;
int64_t i_pos = -1;
int64_t i_unusedpos = -1;
bool b_found = false;
/* Search in skeleton */
Ogg_GetBoundsUsingSkeletonIndex( p_stream, i_time, &i_pos, &i_unusedpos );
if ( i_pos != -1 ) b_found = true;
/* And also search in our own index */
if ( !b_found && OggSeekIndexFind( p_stream, i_time, &i_pos, &i_unusedpos ) )
{
b_found = true;
}
/* Or try to be smart with audio fixed bitrate streams */
if ( !b_found && p_stream->fmt.i_cat == AUDIO_ES && p_sys->i_streams == 1
&& p_sys->i_bitrate && Ogg_GetKeyframeGranule( p_stream, 0xFF00FF00 ) == 0xFF00FF00 )
{
/* But only if there's no keyframe/preload requirements */
/* FIXME: add function to get preload time by codec, ex: opus */
i_pos = i_time * p_sys->i_bitrate / INT64_C(8000000);
b_found = true;
}
/* or search */
if ( !b_found && b_fastseek )
{
i_pos = OggBisectSearchByTime( p_demux, p_stream, i_time,
p_stream->i_data_start, p_sys->i_total_length );
b_found = ( i_pos != -1 );
}
if ( !b_found ) return -1;
if ( i_pos < p_stream->i_data_start || i_unusedpos > p_sys->i_total_length )
return -1;
/* And really do seek */
p_sys->i_input_position = i_pos;
seek_byte( p_demux, p_sys->i_input_position );
ogg_stream_reset( &p_stream->os );
return i_pos;
}
int Oggseek_BlindSeektoPosition( demux_t *p_demux, logical_stream_t *p_stream,
double f, bool b_canfastseek )
......@@ -1319,8 +1365,20 @@ int Oggseek_SeektoAbsolutetime( demux_t *p_demux, logical_stream_t *p_stream,
demux_sys_t *p_sys = p_demux->p_sys;
OggDebug( msg_Dbg( p_demux, "=================== Seeking To Absolute Time %"PRId64, i_time ) );
int64_t i_offset_lower = p_stream->i_data_start;
int64_t i_offset_upper = p_sys->i_total_length;
int64_t i_offset_lower = -1;
int64_t i_offset_upper = -1;
if ( Ogg_GetBoundsUsingSkeletonIndex( p_stream, i_time, &i_offset_lower, &i_offset_upper ) )
{
/* Exact match */
OggDebug( msg_Dbg( p_demux, "Found keyframe at %"PRId64" using skeleton index", i_offset_lower ) );
if ( i_offset_lower == -1 ) i_offset_lower = p_stream->i_data_start;
p_sys->i_input_position = i_offset_lower;
seek_byte( p_demux, p_sys->i_input_position );
ogg_stream_reset( &p_stream->os );
return i_offset_lower;
}
OggDebug( msg_Dbg( p_demux, "Search bounds set to %"PRId64" %"PRId64" using skeleton index", i_offset_lower, i_offset_upper ) );
OggNoDebug(
OggSeekIndexFind( p_stream, i_time, &i_offset_lower, &i_offset_upper )
......@@ -1420,4 +1478,3 @@ int64_t oggseek_read_page( demux_t *p_demux )
return i_result + PAGE_HEADER_BYTES + i_nsegs;
}
modules/demux/oggseek.h
View file @ 51cff6ef
......@@ -55,6 +55,7 @@ bool Ogg_IsKeyFrame ( logical_stream_t *, ogg_packet * );
int64_t Oggseek_GranuleToAbsTimestamp ( logical_stream_t *p_stream, int64_t i_granule,
bool b_presentation );
bool Oggseek_PacketPCRFixup ( logical_stream_t *p_stream, ogg_page *, ogg_packet * );
int Oggseek_BlindSeektoAbsoluteTime ( demux_t *, logical_stream_t *, int64_t, bool );
int Oggseek_BlindSeektoPosition ( demux_t *, logical_stream_t *, double f, bool );
int Oggseek_SeektoAbsolutetime ( demux_t *, logical_stream_t *, int64_t i_granulepos );
const demux_index_entry_t *OggSeek_IndexAdd ( logical_stream_t *, int64_t, int64_t );
......
modules/mux/ogg.c
View file @ 51cff6ef
......@@ -289,6 +289,7 @@ static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
p_stream->p_oggds_header = 0;
/* FIXME: https://trac.videolan.org/vlc/ticket/1412 */
switch( p_input->p_fmt->i_cat )
{
case VIDEO_ES:
......
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